Stabbed in the spine with a slender blade like all his aggro fightin peers.

Stability - it's a teeny bee. come on. sitting on that is like when a cartoon bear tries riding a tricycle, but even more challenging because bees are generally smaller than tricycles. 0/5

Cool Factor - 2/5 It's only cool if you can play it off like nothing happened. Like you're too tough to flip out from a wimpy lil bee sting. Ferdinand couldn't handle it. Not cool.

Difficulty - 5/5 It's gonna hurt

Perilousness - 5/5 If you have a severe allergic reaction to bee stings. In fact, bee sting anaphylaxis is potentially life threatening according to a cursory Google search. So if the matador doesn't kill you, the inability to breathe through your swollen trachea will.

Added bonus - 1/5 Build toughness, I guess? Develop an immunity to bee stings perhaps? But, look, the bee dies after it stings you. The stinger rips off the bee's butt and it soon dies from loneliness or blood loss. We need bees to pollenate our flowers and resist climate change. When your careless sitting kills a bee, you're worse than Monsanto.